When the first gravitational waves from coalescing black holes using numerical relativity were published, many of us noted the apparent simplicity exhibited by the quadrupolar waveform. This was substantiated by the degree to which the numerical-relativity and post-Newtonian waveforms agreed. However, as numerical relativity has explored the diverse black-hole parameter space, we have seen indications of more interesting waveforms. In this talk, I will discuss the potential for complications to arise in the waveforms and the potential ramifications on their use for gravitational-wave detection and parameter estimation.